On Thursday 26 Jul 2012 17:59:31 Hilko Bengen wrote: > I have been playing with iPXE (snponly) on a current Mac Mini, using the > console initialization patches Stefan Dösinger posted in February. I > have found that chainloading large files does not work because something > causes ICMP "Destination port unreachable" messages to be sent to the > TFTP server. The TFTP server then stops sending further blocks. > > Curiously, these ICMP messages are also received by iPXE, which can be > seen with DEBUG=icmp. As far as I am aware, there is no code in iPXE > that generates such messages. Is that correct?
That's correct. The only ICMP packet that iPXE can generate is an echo (ping) response. > iPXE is loaded via TFTP (configuration below). At the moment I suspect > that some part of the Mac's firmware is still interacting with the > network adapter and thus interferes with iPXE's usage of the SNP API. > > Workaround: Setting the start value of try_port in udp_bind() to > something higher than 1023 resolved the issue here, but this is not a > proper fix. How much higher than 1023? Does the same problem occur if you use a TCP-based protocol such as HTTP instead of TFTP? Michael _______________________________________________ ipxe-devel mailing list [email protected] https://lists.ipxe.org/mailman/listinfo.cgi/ipxe-devel
